Leica

The Leica brand share successor company Leitz in Wetzlar:

Leica Camera, manufacturer of cameras and binoculars
Leica Microsystems, a manufacturer of microscopes and related equipment
Leica Biosystems, a manufacturer of microtomes, stainer, cryostat and related equipment for cancer diagnosis
Leica Geosystems, manufacturer of measuring instruments for geodesy and photogrammetry